Exhaust rattle on tunnel brace fix your take? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

jtzako · 07-25-2011, 11:25 PM

Don't physically connect the exhaust to the brace. It will introduce a ton of vibration into the cabin. I plan to get rid of the resonator and also make sure the clamps are a secure as possible.

axis · 07-26-2011, 01:02 AM

What I did was go the a friends muffler shop and had them tack on a muffler hangar and attatch the hangar to the body. There's a spot on the drivers side rear, near the rear end. There's a bolt hole that easily fit the rubber isolated hangar. Bolt the hangar in place then lift up on the exhaust and tack the metal hangar to it. Problem solved. You only have to do one side too since the cross over ties both sides together.

The ARH brace seems pretty nice but $400 to keep my exhaust from hitting is a bit extreme.

Stingr69 · 07-26-2011, 06:11 AM

Coat hangar is what we allways use. Just wrap it arond the pipe and pull it tight then wrap the ends around the driveshaft. Problem solved!

You just need a muffler hangar. Go to 3-Star and ask them to add one to the brace.

They will probably need to fab something but this isn't rocket science.

-Mark.

Mark's SS · 07-26-2011, 09:03 AM

I had this problem with my Borla catback exhaust. I was able to adjust mine up and then use spacers on the tunnel brace. Problem solved. It sounds like your exhaust pipe clamps are not staying tight. Maybe you could just adjust it up as high as you can and then weld the connections so they would stay in place.
Just a thought.

toilets · 07-26-2011, 09:35 AM

LSR 3inch tunnel brace. I have it... Lighter, stronger, and designed to fit a 3 inch exhaust.

LSR performance.

BLACK10 · 07-26-2011, 01:51 PM

the knock sensor will pickup on the exhaust rattling on the brace and take away enging power. this is a proven fact

ducatisl · 07-26-2011, 02:44 PM

Can you not rotate the pipes after the cats to pull the x-pipe up?

Wantconvertible · 07-26-2011, 02:52 PM

Quote:

Originally Posted by Mark's SS

I had this problem with my Borla catback exhaust. I was able to adjust mine up and then use spacers on the tunnel brace. Problem solved. It sounds like your exhaust pipe clamps are not staying tight. Maybe you could just adjust it up as high as you can and then weld the connections so they would stay in place.
Just a thought.

I added a 3/4 washers to each bolt ,on the brace this give a clearance so it stopped hitting (I have Borla)

Mark's SS · 07-26-2011, 02:59 PM

Quote:

Originally Posted by Wantconvertible

I added a 3/4 washers to each bolt ,on the brace this give a clearance so it stopped hitting (I have Borla)

This fixed mine (not pretty) but saved me from having to spend $$$ on a aftermarket tunnel brace.

velociSSimo · 07-26-2011, 03:02 PM

I had this issue with my Flowmaster AT Catback. Quick fix was to put a slight bend in the factory brace. Holes still lined up with no problem. Going to get an aftermarket brace eventually.

Wantconvertible · 07-26-2011, 03:31 PM

Cost me 4 bucks

jsharp · 07-26-2011, 06:07 PM

Quote:

Originally Posted by Mark's SS

I had this problem with my Borla catback exhaust. I was able to adjust mine up and then use spacers on the tunnel brace. Problem solved. It sounds like your exhaust pipe clamps are not staying tight. Maybe you could just adjust it up as high as you can and then weld the connections so they would stay in place.
Just a thought.

I did consider welding but then that messes up the noweeds "bolt in" ability if i was to ever sell

jsharp · 07-26-2011, 06:09 PM

Quote:

Originally Posted by BLACK10

the knock sensor will pickup on the exhaust rattling on the brace and take away enging power. this is a proven fact

Tell me about it my car runs like shit when the exhuast is doing this

jsharp · 07-26-2011, 06:10 PM

Quote:

Originally Posted by Wantconvertible

I added a 3/4 washers to each bolt ,on the brace this give a clearance so it stopped hitting (I have Borla)

I already have a 5/8 spacer even with bmr tunnel brace and it sits on brace still!

07-25-2011, 11:25 PM	#15
jtzako Drives: 2010 IBM Camaro SS Join Date: Jun 2007 Location: DFW, Tx Posts: 1,157	Don't physically connect the exhaust to the brace. It will introduce a ton of vibration into the cabin. I plan to get rid of the resonator and also make sure the clamps are a secure as possible. __________________ 2010 Camaro SS Imperial Blue \| CAI Inc, CAI \| Solo Hi Flow Cats \| X-Pipe \| Backup Camera \| PDIM

07-26-2011, 01:02 AM	#16
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	What I did was go the a friends muffler shop and had them tack on a muffler hangar and attatch the hangar to the body. There's a spot on the drivers side rear, near the rear end. There's a bolt hole that easily fit the rubber isolated hangar. Bolt the hangar in place then lift up on the exhaust and tack the metal hangar to it. Problem solved. You only have to do one side too since the cross over ties both sides together. The ARH brace seems pretty nice but $400 to keep my exhaust from hitting is a bit extreme. __________________ 2010 Black 2SS/RS A6 Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train.

07-26-2011, 02:44 PM	#21
ducatisl Emerald Coast Camaros Drives: 2010 2SS 6m Join Date: Mar 2010 Location: Fort Walton Beach...surrounded by da** pickup trucks I can't see around! Posts: 692 View My Garage	Can you not rotate the pipes after the cats to pull the x-pipe up? __________________ Procharged F1A-94 on a 416 LSA block, Callies/Manley/Scat/Melling/Cloyes/ARP/Ferrea/Landspeed/Hi-Ram/FIC/Tick/Alky/ Strange/QA1/DSS/BMR/RPS/Tilton/GZM/Fore/AEM/ATi/JGS etc., built/tuned by me and Innovative Street Technologies 'Mo's Seemingly Endless Build Thread

07-26-2011, 03:02 PM	#24
velociSSimo ... well, not yet. Drives: 2012 Chevy Silverado ZL1 Join Date: Apr 2011 Location: NE Ohio Posts: 1,213	I had this issue with my Flowmaster AT Catback. Quick fix was to put a slight bend in the factory brace. Holes still lined up with no problem. Going to get an aftermarket brace eventually. __________________ 1988 Wellcraft St. Tropez / 32' Length / Twin 454ci

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07-26-2011, 06:11 AM	#17
Stingr69 '69 Owned Since '79 Drives: '69 Z/28 LeMans Blue w/White Join Date: Oct 2008 Location: LR AR Posts: 1,848 View My Garage	Coat hangar is what we allways use. Just wrap it arond the pipe and pull it tight then wrap the ends around the driveshaft. Problem solved! You just need a muffler hangar. Go to 3-Star and ask them to add one to the brace. They will probably need to fab something but this isn't rocket science. -Mark.

07-26-2011, 09:03 AM	#18
Mark's SS Drives: 17 Silverado 2500HD LTZ 4x4 Duramax Join Date: Oct 2009 Location: Amarillo, TX Posts: 354	I had this problem with my Borla catback exhaust. I was able to adjust mine up and then use spacers on the tunnel brace. Problem solved. It sounds like your exhaust pipe clamps are not staying tight. Maybe you could just adjust it up as high as you can and then weld the connections so they would stay in place. Just a thought.

07-26-2011, 09:35 AM	#19
toilets Drives: 2010 camaro Join Date: May 2011 Location: Southeast, Posts: 842	LSR 3inch tunnel brace. I have it... Lighter, stronger, and designed to fit a 3 inch exhaust. LSR performance.

07-26-2011, 01:51 PM	#20
BLACK10 Drives: 2010 CAMARO. 10.04@133mph, 1.4 60' Join Date: Jul 2009 Location: Lafayette, Louisiana Posts: 4,585	the knock sensor will pickup on the exhaust rattling on the brace and take away enging power. this is a proven fact

07-26-2011, 03:31 PM	#25
Wantconvertible Drives: 2011 SS/RS VERT Join Date: Mar 2010 Location: PHILA PA Posts: 1,615	Cost me 4 bucks